﻿/**
Custom module for you to write your own javascript functions
**/
var Util = function () {
    var u = {
        version: '010120160701',
        versionUrl: function (url, ver) {
            url += ((url.indexOf('?') == -1) ? '?' : '&') + '_v_=' + (ver || u.version);
            return url;
        },
        objectIdIndex : 1,
        objectId: function (obj) {
            if (obj) {
                if (!obj._object_id) {
                    obj._object_id = u.objectIdIndex++;
                }
                return obj._object_id
            }
        },
        getJson: function (obj) {
            return JSON.stringify(obj);
        },
        getObj: function (json) {
            return JSON.parse(json);
        },
        formats: { year: 'yyyy', month: 'YYYY-MM', day: 'YYYY-MM-DD', hour: 'YYYY-MM-DD HH', mintue: 'YYYY-MM-DD HH:mm', second: 'YYYY-MM-DD HH:mm:ss' },
        format: function (date, format) {
            if (date instanceof Date) {
                return moment(date).format(format)
            } else {
                return moment(new Date(date)).format(format)
            }
        },
        date: function (s) {
            return new Date(s);
        },
        addDays : function(date, days){
            return new Date(date.getTime() + days * 24 * 60 * 60 * 1000);
        },
        getUrlParam: function (name) {
            var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)"); //构造一个含有目标参数的正则表达式对象
            var r = window.location.search.substr(1).match(reg);  //匹配目标参数
            if (r != null) return unescape(r[2]); return null; //返回参数值
        },
        isWeiXin: function () {
            var ua = window.navigator.userAgent.toLowerCase();
            if (ua.match(/MicroMessenger/i) == 'micromessenger') {
                return true;
            } else {
                return false;
            }
        }
    };

    u.money = {
        //说明：javascript的加法结果会有误差，在两个浮点数相加的时候会比较明显。这个函数返回较为精确的加法结果。
        //调用：accAdd(arg1,arg2)
        //返回值：arg1加上arg2的精确结果    
        add: function accAdd(arg1, arg2) {
            var r1, r2, m;
            try {
                r1 = (1 * arg1).toString().split(".")[1].length;
            }
            catch (e) {
                r1 = 0;
            }
            try {
                r2 = (1 * arg2).toString().split(".")[1].length;
            }
            catch (e) {
                r2 = 0;
            }
            m = Math.pow(10, Math.max(r1, r2));
            return (arg1 * m + arg2 * m) / m;
        },

        //说明：javascript的减法结果会有误差，在两个浮点数相加的时候会比较明显。这个函数返回较为精确的减法结果。
        //调用：accSub(arg1,arg2)
        //返回值：arg1减上arg2的精确结果    
        sub: function (arg1, arg2) {
            return money.add(arg1, -arg2);
        },

        //说明：javascript的乘法结果会有误差，在两个浮点数相乘的时候会比较明显。这个函数返回较为精确的乘法结果。
        //调用：accMul(arg1,arg2)
        //返回值：arg1乘以arg2的精确结果    
        mul: function (arg1, arg2) {
            var m = 0, s1 = (1 * arg1).toString(), s2 = (1 * arg2).toString();
            try {
                m += s1.split(".")[1].length;
            }
            catch (e) {
            }
            try {
                m += s2.split(".")[1].length;
            }
            catch (e) {
            }
            var ss = Number(s1.replace(".", "")) * Number(s2.replace(".", "")) / Math.pow(10, m);
            return Math.round(ss * 100) / 100;
        },

        //说明：javascript的除法结果会有误差，在两个浮点数相除的时候会比较明显。这个函数返回较为精确的除法结果。
        //调用：accDiv(arg1,arg2)
        //返回值：arg1除以arg2的精确结果    
        div: function (arg1, arg2) {
            var t1 = 0, t2 = 0, r1, r2;
            try {
                t1 = (1 * arg1).toString().split(".")[1].length;
            }
            catch (e) {
            }
            try {
                t2 = (1 * arg2).toString().split(".")[1].length;
            }
            catch (e) {
            }
            with (Math) {
                r1 = Number((1 * arg1).toString().replace(".", ""));
                r2 = Number((1 * arg2).toString().replace(".", ""));
                var ss = (r1 / r2) * pow(10, t2 - t1);
                return Math.round(ss * 100) / 100;
            }
        },
        //金额大小写转换
        convertCurrency: function (currencyDigits) {
            // Constants:
            var MAXIMUM_NUMBER = 99999999999.99;
            // Predefine the radix characters and currency symbols for output:
            var CN_ZERO = "零";
            var CN_ONE = "壹";
            var CN_TWO = "贰";
            var CN_THREE = "叁";
            var CN_FOUR = "肆";
            var CN_FIVE = "伍";
            var CN_SIX = "陆";
            var CN_SEVEN = "柒";
            var CN_EIGHT = "捌";
            var CN_NINE = "玖";
            var CN_TEN = "拾";
            var CN_HUNDRED = "佰";
            var CN_THOUSAND = "仟";
            var CN_TEN_THOUSAND = "万";
            var CN_HUNDRED_MILLION = "亿";
            var CN_SYMBOL = "人民币";
            var CN_DOLLAR = "元";
            var CN_TEN_CENT = "角";
            var CN_CENT = "分";
            var CN_INTEGER = "整";

            // Variables:
            var integral; // Represent integral part of digit number. 
            var decimal; // Represent decimal part of digit number.
            var outputCharacters; // The output result.
            var parts;
            var digits, radices, bigRadices, decimals;
            var zeroCount;
            var i, p, d;
            var quotient, modulus;

            // Validate input string:
            currencyDigits = currencyDigits.toString();
            if (currencyDigits == "") {
                alert("Empty input!");
                return "";
            }
            if (currencyDigits.match(/[^,.\d]/) != null) {
                alert("Invalid characters in the input string!");
                return "";
            }
            if ((currencyDigits).match(/^((\d{1,3}(,\d{3})*(.((\d{3},)*\d{1,3}))?)|(\d+(.\d+)?))$/) == null) {
                alert("Illegal format of digit number!");
                return "";
            }

            // Normalize the format of input digits:
            currencyDigits = currencyDigits.replace(/,/g, ""); // Remove comma delimiters.
            currencyDigits = currencyDigits.replace(/^0+/, ""); // Trim zeros at the beginning. 
            // Assert the number is not greater than the maximum number.
            if (Number(currencyDigits) > MAXIMUM_NUMBER) {
                alert("Too large a number to convert!");
                return "";
            }
            // http://www.knowsky.com/ Process the coversion from currency digits to characters:
            // Separate integral and decimal parts before processing coversion:
            parts = currencyDigits.split(".");
            if (parts.length > 1) {
                integral = parts[0];
                decimal = parts[1];
                // Cut down redundant decimal digits that are after the second.
                decimal = decimal.substr(0, 2);
            }
            else {
                integral = parts[0];
                decimal = "";
            }
            // Prepare the characters corresponding to the digits:
            digits = new Array(CN_ZERO, CN_ONE, CN_TWO, CN_THREE, CN_FOUR, CN_FIVE, CN_SIX, CN_SEVEN, CN_EIGHT, CN_NINE);
            radices = new Array("", CN_TEN, CN_HUNDRED, CN_THOUSAND);
            bigRadices = new Array("", CN_TEN_THOUSAND, CN_HUNDRED_MILLION);
            decimals = new Array(CN_TEN_CENT, CN_CENT);
            // Start processing:
            outputCharacters = "";
            // Process integral part if it is larger than 0:
            if (Number(integral) > 0) {
                zeroCount = 0;
                for (i = 0; i < integral.length; i++) {
                    p = integral.length - i - 1;
                    d = integral.substr(i, 1);
                    quotient = p / 4;
                    modulus = p % 4;
                    if (d == "0") {
                        zeroCount++;
                    }
                    else {
                        if (zeroCount > 0) {
                            outputCharacters += digits[0];
                        }
                        zeroCount = 0;
                        outputCharacters += digits[Number(d)] + radices[modulus];
                    }
                    if (modulus == 0 && zeroCount < 4) {


                        outputCharacters += bigRadices[quotient];
                    }
                }
                outputCharacters += CN_DOLLAR;
            }
            // Process decimal part if there is:
            if (decimal != "") {
                for (i = 0; i < decimal.length; i++) {
                    d = decimal.substr(i, 1);
                    if (d != "0") {
                        outputCharacters += digits[Number(d)] + decimals[i];
                    }
                }
            }
            // Confirm and return the final output string:
            if (outputCharacters == "") {
                outputCharacters = CN_ZERO + CN_DOLLAR;
            }
            if (decimal == "") {
                outputCharacters += CN_INTEGER;
            }
            //outputCharacters = CN_SYMBOL + outputCharacters;
            outputCharacters = outputCharacters;
            return outputCharacters;
        },// 
        //还原金额   
        rmoney: function (s) {
            return parseFloat(s.replace(/[^\d\.-]/g, ""));
        },


        //金额合计的格式化s为要格式化的参数（浮点型），n为小数点后保留的位数	
        fmoney: function (s, n) {
            n = n > 0 && n <= 20 ? n : 2;
            s = parseFloat((s + "").replace(/[^\d\.-]/g, "")).toFixed(n) + "";
            var l = s.split(".")[0].split("").reverse(),
            r = s.split(".")[1];
            t = "";
            for (i = 0; i < l.length; i++) {
                t += l[i] + ((i + 1) % 3 == 0 && (i + 1) != l.length ? "," : "");
            }
            return t.split("").reverse().join("") + "." + r;
        }
    };

    return u;
}();

Object.keys = Object.keys || (function () {
    var hasOwnProperty = Object.prototype.hasOwnProperty,
        hasDontEnumBug = !{ toString: null }.propertyIsEnumerable("toString"),
        DontEnums = [
            'toString', 'toLocaleString', 'valueOf', 'hasOwnProperty',
            'isPrototypeOf', 'propertyIsEnumerable', 'constructor'
        ],
        DontEnumsLength = DontEnums.length;

    return function (o) {
        if (typeof o != "object" && typeof o != "function" || o === null)
            throw new TypeError("Object.keys called on a non-object");

        var result = [];
        for (var name in o) {
            if (hasOwnProperty.call(o, name))
                result.push(name);
        }

        if (hasDontEnumBug) {
            for (var i = 0; i < DontEnumsLength; i++) {
                if (hasOwnProperty.call(o, DontEnums[i]))
                    result.push(DontEnums[i]);
            }
        }

        return result;
    };
})();


(function () {
    if (!String.prototype.trim) {
        // Make sure we trim BOM and NBSP
        var rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g;
        String.prototype.trim = function () {
            return this.replace(rtrim, '');
        };
    }
    String.prototype.trimString = function (a) {
        var str = this;
        if (str.length >= a.length && str.substr(0, a.length) == a) {
            str = str.substr(a.length);
        }
        if (str.length >= a.length && str.substr(str.length - a.length, a.length) == a) {
            str = str.substr(0, str.length - a.length);
        }
        return str;
    };
    String.prototype.trimStringRight = function (a) {
        var str = this;
        if (str.length >= a.length && str.substr(str.length - a.length, a.length) == a) {
            str = str.substr(0, str.length - a.length);
        }
        return str;
    };
    String.prototype.trimStringLeft = function (a) {
        var str = this;
        if (str.length >= a.length && str.substr(0, a.length) == a) {
            str = str.substr(a.length);
        }
        return str;
    };
})();


(function () {
    var isJsonObject = function (params) {
        return (params !== null
                && params !== undefined
                && params instanceof Object
                && Object.keys(params).length > 0
               );
    };

    var isArrayObject = function (params) {
        return (params !== null
                && params !== undefined
                && params instanceof Array
                && params.length > 0
               );
    };

    var formatStringByArray = function (rootObj, params) {
        // "alfa {0}"
        var keys = rootObj.match(/(\{[\d]{1,}\}){1}/g);
        for (var key in keys) {
            // replace from {0} the "{" and "}" to empty string
            var keyValue = key.replace('{', '').replace('}', '');
            rootObj = rootObj.replace(
                '{' + key + '}',
                params[keyValue]
            );
        }

        return rootObj;
    };

    var formatStringByJson = function (rootObj, params) {
        // "alfa {0}"
        var keys = rootObj.match(/(\{[a-zA-Z0-9]{1,}\}){1}/g);
        for (var key in keys) {
            // replace from {0} the "{" and "}" to empty string
            var keyValue = keys[key].replace('{', '').replace('}', '');
            rootObj = rootObj.replace(
                keys[key],
                params[keyValue]
            );
        }

        return rootObj;
    };

    var format = function (source, params, args) {

        if (params === null || params === undefined) {
            return source;
        } else if (isJsonObject(params)) {
            return formatStringByJson(source, params);
        } else if (isArrayObject(params)) {
            return formatStringByArray(source, params);
        } else {
            return source.replace(/{(\d+)}/g, function (match, number) {
                return typeof args[number] !== undefined ? args[number] : match;
            });
        }
    };

    String.prototype.format = function (params) {
        var $rootObj = this;
        return format($rootObj, params, arguments);
    };
})();


